11313831 has 4 divisors (see below), whose sum is σ = 15085112. Its totient is φ = 7542552.

The previous prime is 11313817. The next prime is 11313833. The reversal of 11313831 is 13831311.

11313831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11313831 - 2⁷ = 11313703 is a prime.

It is a super-2 number, since 2×11313831² = 256005543793122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11313798 and 11313807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1885636 + ... + 1885641.

It is an arithmetic number, because the mean of its divisors is an integer number (3771278).

Almost surely, 2^11313831 is an apocalyptic number.

11313831 is a deficient number, since it is larger than the sum of its proper divisors (3771281).

11313831 is an equidigital number, since it uses as much as digits as its factorization.

11313831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771280.

The product of its digits is 216, while the sum is 21.

The square root of 11313831 is about 3363.6038708504. The cubic root of 11313831 is about 224.4932199016.

The spelling of 11313831 in words is "eleven million, three hundred thirteen thousand, eight hundred thirty-one".